package org.apache.archiva.maven2.metadata;
   /*
    * Licensed to the Apache Software Foundation (ASF) under one
    * or more contributor license agreements.  See the NOTICE file
    * distributed with this work for additional information
    * regarding copyright ownership.  The ASF licenses this file
    * to you under the Apache License, Version 2.0 (the
    * "License"); you may not use this file except in compliance
    * with the License.  You may obtain a copy of the License at
   *
   *   http://www.apache.org/licenses/LICENSE-2.0
   *
   * Unless required by applicable law or agreed to in writing,
   * software distributed under the License is distributed on an
   * "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
   * KIND, either express or implied.  See the License for the
   * specific language governing permissions and limitations
   * under the License.
   */
  
  import org.apache.archiva.model.ArchivaRepositoryMetadata;
  import org.apache.archiva.model.Plugin;
  import org.apache.archiva.model.SnapshotVersion;
  import org.apache.archiva.xml.XMLException;
  import org.apache.archiva.xml.XMLReader;
  import org.apache.commons.lang.math.NumberUtils;
  import org.dom4j.Element;
  
  import java.io.File;
  import java.util.Date;
  
  /**
   * @author Olivier Lamy
   * @since 1.4-M3
   */
  public class MavenMetadataReader
  {
      /*
      <?xml version="1.0" encoding="UTF-8"?>
      <metadata modelVersion="1.1.0">
        <groupId>org.apache.archiva</groupId>
        <artifactId>archiva</artifactId>
        <version>1.4-M3-SNAPSHOT</version>
        <versioning>
          <snapshot>
            <timestamp>20120310.230917</timestamp>
            <buildNumber>2</buildNumber>
          </snapshot>
          <lastUpdated>20120310230917</lastUpdated>
          <snapshotVersions>
            <snapshotVersion>
              <extension>pom</extension>
              <value>1.4-M3-20120310.230917-2</value>
              <updated>20120310230917</updated>
            </snapshotVersion>
          </snapshotVersions>
        </versioning>
      </metadata>
      */
  
      /**
       * Read and return the {@link org.apache.archiva.model.ArchivaRepositoryMetadata} object from the provided xml file.
       *
       * @param metadataFile the maven-metadata.xml file to read.
       * @return the archiva repository metadata object that represents the provided file contents.
       * @throws XMLException
       */
      public static ArchivaRepositoryMetadata read( File metadataFile )
          throws XMLException
      {
  
          XMLReader xml = new XMLReader( "metadata", metadataFile );
          // invoke this to remove namespaces, see MRM-1136
          xml.removeNamespaces();
  
          ArchivaRepositoryMetadata metadata = new ArchivaRepositoryMetadata();
  
          metadata.setGroupId( xml.getElementText( "//metadata/groupId" ) );
          metadata.setArtifactId( xml.getElementText( "//metadata/artifactId" ) );
          metadata.setVersion( xml.getElementText( "//metadata/version" ) );
          metadata.setFileLastModified( new Date( metadataFile.lastModified() ) );
          metadata.setFileSize( metadataFile.length() );
  
          metadata.setLastUpdated( xml.getElementText( "//metadata/versioning/lastUpdated" ) );
          metadata.setLatestVersion( xml.getElementText( "//metadata/versioning/latest" ) );
          metadata.setReleasedVersion( xml.getElementText( "//metadata/versioning/release" ) );
          metadata.setAvailableVersions( xml.getElementListText( "//metadata/versioning/versions/version" ) );
  
          Element snapshotElem = xml.getElement( "//metadata/versioning/snapshot" );
          if ( snapshotElem != null )
          {
              SnapshotVersion snapshot = new SnapshotVersion();
              snapshot.setTimestamp( snapshotElem.elementTextTrim( "timestamp" ) );
              String tmp = snapshotElem.elementTextTrim( "buildNumber" );
              if ( NumberUtils.isNumber( tmp ) )
              {
                  snapshot.setBuildNumber( NumberUtils.toInt( tmp ) );
              }
              metadata.setSnapshotVersion( snapshot );
         }
 
         for ( Element plugin : xml.getElementList( "//metadata/plugins/plugin" ) )
         {
             Plugin p = new Plugin();
             p.setPrefix( plugin.elementTextTrim( "prefix" ) );
             p.setArtifactId( plugin.elementTextTrim( "artifactId" ) );
             p.setName( plugin.elementTextTrim( "name" ) );
             metadata.addPlugin( p );
         }
 
         return metadata;
 
     }
 }